例句與造句

1. Series 415 steam safety valves feature a stainless steel spring , a top guided stem and non - stick teflon ? disc to metal seating to assure positive shutoff
   系列415蒸汽安全閥配置不銹鋼彈簧，一個(gè)頂部引導(dǎo)閥桿和不卡住特氟隆閥瓣對(duì)金屬閥座密封，確保絕對(duì)關(guān)閉。
2. To assure trouble - free check valve operation and shutoff operation , the valve should be periodically opened and closed to keep valve seat and valve disc guide stem free of build up of system contaminants
   為了確保無(wú)故障止回閥運(yùn)行和關(guān)閉運(yùn)行，閥門(mén)應(yīng)該定期開(kāi)啟和關(guān)閉，以保持閥座和閥瓣引導(dǎo)閥桿避免系統(tǒng)污染物淤積。
3. Steel and plastic composite pipe production line is mainly used in producing steel - plastic composite pipe and other composite pipe material . the produced composite pipes are widely used in indoor decoration , decoration , curtain guiding stem , flag pole , clothes - rack and others
   鋼塑復(fù)合管生產(chǎn)線主要用于生產(chǎn)鋼塑復(fù)合管及其它復(fù)合管材，生產(chǎn)的復(fù)合管廣泛用于室內(nèi)裝飾裝璜窗簾導(dǎo)桿掛衣架旗桿等各類裝飾用管。
4. It's difficult to find guide stem in a sentence. 用guide stem造句挺難的